From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Thu, 14 May 2009 12:52:17 +0000 (+0200)
Subject: perf_counter: x86: Robustify interrupt handling
X-Git-Tag: v2.6.31-rc1~383^2~275
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a4016a79fcbd139e7378944c0d86a39fdbc70ecc;p=pandora-kernel.git

perf_counter: x86: Robustify interrupt handling

Two consecutive NMIs could daze and confuse the machine when the
first would handle the overflow of both counters.

[ Impact: fix false-positive syslog messages under multi-session profiling ]

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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